[#68478] Looking for MRI projects for Ruby Google Summer of Code 2015 — Tony Arcieri <bascule@...>
Hi ruby-core,
10 messages
2015/03/10
[#68480] Re: Looking for MRI projects for Ruby Google Summer of Code 2015
— SASADA Koichi <ko1@...>
2015/03/10
I have.
[#68549] Re: Looking for MRI projects for Ruby Google Summer of Code 2015
— SASADA Koichi <ko1@...>
2015/03/17
I sent several ideas on previous, mail, but they are seems rejected?
[#68493] [Ruby trunk - Feature #10532] [PATCH] accept_nonblock supports "exception: false" — nobu@...
Issue #10532 has been updated by Nobuyoshi Nakada.
5 messages
2015/03/11
[#68503] Re: [Ruby trunk - Feature #10532] [PATCH] accept_nonblock supports "exception: false"
— Eric Wong <normalperson@...>
2015/03/12
Committed as r49948.
[#68504] Re: [Ruby trunk - Feature #10532] [PATCH] accept_nonblock supports "exception: false"
— Nobuyoshi Nakada <nobu@...>
2015/03/12
On 2015/03/12 12:08, Eric Wong wrote:
[#68506] Seven stacks (and two questions) — Jakub Trzebiatowski <jaktrze1@...>
The Ruby Hacking Guide says that Ruby has窶ヲ seven stacks. Is it an implementation choice (and it could be implemented with one stack), or is there really a need for seven logical stacks? For example, Lua has one stack, and still closures with upvalues are totally possible (it窶冱 like Ruby窶冱 blocks that can reference local variables of their enclosing method, but it works for any function with any upvalues).
5 messages
2015/03/12
[#68520] Possible regression in 2.1 and 2.2 in binding when combined with delegate? — Joe Swatosh <joe.swatosh@...>
# The following code
3 messages
2015/03/14
[#68604] GSOC project Cross-thread Fiber support — surya pratap singh raghuvanshi <oshosurya@...>
- *hi i am a third year computer science student interested in working
6 messages
2015/03/22
[#68606] Re: GSOC project Cross-thread Fiber support
— Tony Arcieri <bascule@...>
2015/03/22
Hi Surya,
[#68619] Re: GSOC project Cross-thread Fiber support
— surya pratap singh raghuvanshi <oshosurya@...>
2015/03/23
hi tony,
[ruby-core:68633] [Ruby trunk - Bug #10999] [PERF] bm_hash_aref_flo.rb
From:
nobu@...
Date:
2015-03-25 02:20:33 UTC
List:
ruby-core #68633
Issue #10999 has been updated by Nobuyoshi Nakada.
It is not a realistic benchmark, that integer parts are all different.
Adding floats with same integer parts shows very bad result in the older version, whereas the latest version does not.
~~~ruby
h = {}
strs = [*1..10000].map! {|i| i.fdiv(100)}
strs.each { |s| h[s] = s }
50.times { strs.each { |s| h[s] } }
~~~
-----------------------------------------------------------
benchmark results:
Execution time (sec)
name |old |new
-------------|------:|------:
hash_aref_flo| 0.942| 0.084
Speedup ratio: compare with the result of `old' (greater is better)
name |new
-------------|------:
hash_aref_flo| 11.175
This is because the older code ignored fraction parts, and it became neary linear search.
----------------------------------------
Bug #10999: [PERF] bm_hash_aref_flo.rb
https://bugs.ruby-lang.org/issues/10999#change-51930
* Author: Guo Xiang Tan
* Status: Open
* Priority: Normal
* Assignee: Nobuyoshi Nakada
* ruby -v: 2.3.0dev (2015-03-18 trunk 49999) [x86_64-linux]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
Before: 0.066s
After [3bcf9fb53e4b9efabb15a3091fddfb68e5b6fbbe](https://github.com/ruby/ruby/commit/3bcf9fb): 0.094
To view the full graph, please visit http://rubybench.org/ruby/ruby/commits?result_type=hash_aref_flo&display_count=200.
To issue is meant to highlight what we're seeing at RubyBench.org, feel free to close this issue if the trade offs were intended.
--
https://bugs.ruby-lang.org/